National Guard Tech. Sgt. Charles Delano checks National Guard Tech. Sgt. Julian Aviles' MCU-2 protective mask while transitioning between chemical zones during Operation Crisis Reach at Gulfport Combat Readiness Training Center, MS., Feb. 2, 2012. As part of the simulation, Delano escorted Aviles to the squadron operation center with intelligence information.(National Guard photo by Staff Sgt. Noel Velez Crespo /released).